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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 637 · 40 questions
TalentJR

The fast method (Count the places): Forget the points and multiply the whole numbers: 2.5 × 1.4 → 25 × 14 = 350. Count the decimal places in both numbers: 1 + 1 = 2. Put the point that many places from the right: 3.50 — then drop the 0 at the end: 3.5.

NameDateTime takenScore ___ / 40
  1. 1.0.66 × 0.7 =
  2. 2.0.93 × 3.5 =
  3. 3.0.62 × 2.8 =
  4. 4.2.1 × 0.2 =
  5. 5.0.39 × 0.8 =
  6. 6.0.21 × 2.7 =
  7. 7.0.31 × 1.8 =
  8. 8.1.3 × 3.7 =
  9. 9.4.1 × 0.8 =
  10. 10.6.1 × 0.32 =
  11. 11.4.4 × 1.5 =
  12. 12.0.51 × 0.5 =
  13. 13.0.57 × 1.1 =
  14. 14.6.3 × 0.4 =
  15. 15.3.1 × 3.6 =
  16. 16.7.7 × 0.13 =
  17. 17.2.3 × 0.17 =
  18. 18.0.98 × 2.3 =
  19. 19.2.8 × 0.11 =
  20. 20.6.5 × 1.3 =
  21. 21.0.58 × 2.4 =
  22. 22.4.2 × 0.22 =
  23. 23.7.7 × 1.9 =
  24. 24.0.44 × 3.2 =
  25. 25.5.4 × 3.7 =
  26. 26.0.27 × 0.8 =
  27. 27.0.35 × 0.7 =
  28. 28.5.9 × 1.8 =
  29. 29.7.6 × 0.31 =
  30. 30.8.3 × 3.4 =
  31. 31.7.1 × 2.8 =
  32. 32.0.95 × 3.8 =
  33. 33.0.3 × 0.16 =
  34. 34.5.2 × 2.4 =
  35. 35.0.7 × 0.25 =
  36. 36.0.25 × 1.6 =
  37. 37.6.7 × 1.4 =
  38. 38.5.8 × 0.8 =
  39. 39.0.11 × 1.1 =
  40. 40.0.88 × 1.1 =

Answer key

  1. 0.462
  2. 3.255
  3. 1.736
  4. 0.42
  5. 0.312
  6. 0.567
  7. 0.558
  8. 4.81
  9. 3.28
  10. 1.952
  11. 6.6
  12. 0.255
  13. 0.627
  14. 2.52
  15. 11.16
  16. 1.001
  17. 0.391
  18. 2.254
  19. 0.308
  20. 8.45
  21. 1.392
  22. 0.924
  23. 14.63
  24. 1.408
  25. 19.98
  26. 0.216
  27. 0.245
  28. 10.62
  29. 2.356
  30. 28.22
  31. 19.88
  32. 3.61
  33. 0.048
  34. 12.48
  35. 0.175
  36. 0.4
  37. 9.38
  38. 4.64
  39. 0.121
  40. 0.968

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